AmazonHD broadband audio on the handset and hands-free calling Dual-Band WLAN 802.11 a/b/g/n/ac 10 line buttons for up to 5 SIP accounts 40 digital BLF buttons integrated, expansion modules with 40 BLF / speed dial buttons available
HD broadband audio on the handset and hands-free calling Dual-Band WLAN 802.11 a/b/g/n/ac 10 line buttons for up to 5 SIP accounts 40 digital BLF buttons integrated, expansion modules with 40 BLF / speed dial buttons available